# hashtable.h File Reference

`#include <vector>`
`#include <iterator>`
`#include <bits/stl_algo.h>`
`#include <bits/stl_function.h>`
`#include <ext/hash_fun.h>`

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## Namespaces
namespace | __gnu_cxx

## Detailed Description

This file is a GNU extension to the Standard C++ Library (possibly containing extensions from the HP/SGI STL subset). You should only include this header if you are using GCC 3 or later.

Definition in file ext/hashtable.h.